Tazarotene--a topical retinoid for psoriasis.

Retinoids have been given systemically for severe psoriasis for several years. Tazarotene (Zorac-Allergan), the first retinoid to be marketed as a topical preparation for psoriasis, was recently licensed for mild-to-moderate plaque psoriasis involving up to 10% of the body surface area. Here we assess its place in the management of psoriasis.